in this case, the technology was correct. they got it right. these things are very sensitive, they're not the easiest -- they're easy but they're not. you got to get it just right to make it work. they made it work. that tells me he had some level of training and probably paramilitary training as well. we have to look at that as a major indicator that someone is doing something or up to no good. >> can i ask you two quick things. you can answer quickly. >> sure. >> do you think there are others involved living here and why if they were tied to groups overseas has no one declared their involvement in this? do you think after these arrests they will? >> two reasons, they're changing their tactics. katherine harris did a great book that details some of this. secondly, i think we'll come to find they have a network in place. it's just that maybe we didn't fully detect it yet. it's important to do the detailed forensics to find other links. >> tony shaffer, thank you very much for your insight. we appreciate it. >> thank you. >> the united states wa